1) Which pair of atoms constitutes a pair of isotopes of the
same element?
14
14
A)
X
X
6
7
14
12
B)
X
X
6
6
17
17
C)
X
X
9
8
19
19
D)
X
X
10
9
20
21
E)
X
X
10
11
2) Which group in the periodic table contains only
nonmetals?
A) 1A
B) 6A
C) 2B
D) 2A
E) 8A
3) The element __________ is the most similar to strontium
in chemical and physical properties.
A) Li
B) At
C) Rb
D) Ba
E) Cs
4) Elements in Group 7A are known as the __________.
A) chalcogens
B) alkali metals
C) alkaline earth metals
D) halogens
E) noble gases
5) Elements in Group 8A are known as the __________.
A) halogens
B) alkali metals
C) alkaline earth metals
D) chalcogens
E) noble gases
6) Potassium is a __________ and chlorine is a __________.
A) metal, nonmetal
B) metal, metal
C) metal, metalloid
D) metalloid, nonmetal
E) nonmetal, metal
7) What is the formula of the compound formed
between strontium ions and nitrogen ions?
A) SrN
B) Sr3 N 2
C) Sr2 N3
D) SrN 2
E) SrN3
8) Magnesium reacts with a certain element to form a
compound with the general formula MgX.
What would the most likely formula be for the compound
formed between potassium and element X?
A) K 2 X
B) KX2
C) K 2 X3
D) K 2 X 2
E) KX
9) The formula of a salt is XCl2 . The X-ion in this salt has
28 electrons.
The metal X is __________.
A) Ni
B) Zn
C) Fe
D) V
E) Pd
10) The charge on the manganese in the salt MnF3 is
__________.
A) +1
B) -1
C) +2
D) -2
E) +3
11) Aluminum reacts with a certain nonmetallic element to
form a compound with the general formula AlX.
Element X is a diatomic gas at room temperature. Element X
must be __________.
A) oxygen
B) fluorine
C) chlorine
D) nitrogen
E) sulfur
12) Aluminum forms an ion with a charge of __________.
A) +2
B) -3
C) +1
D) +3
E) -1
13) Sulfur forms an ion with a charge of __________.
A) +2
B) -2
C) +3
D) -6
E) +6
14) Predict the empirical formula of the ionic compound that
forms from aluminum and oxygen.
A) AlO
B) Al3O 2
C) Al2 O3
D) AlO2
E) Al2 O
15) The correct name for SrO is __________.
A) strontium oxide
B) strontium hydroxide
C) strontium peroxide
D) strontium monoxide
E) strontium dioxide
16) The correct name for K 2S is __________.
A) potassium sulfate
B) potassium disulfide
C) potassium bisulfide
D) potassium sulfide
E) dipotassium sulfate
17) The ions Ca 2+ and PO43- form a salt with the formula
__________.
A) CaPO4
B) Ca 2 (PO4 )3
C) Ca 2 PO4
D) Ca(PO4 )2
E) Ca 3 (PO4 )2
18) The correct formula of iron(III) bromide is __________.
A) FeBr2
B) FeBr3
C) FeBr
D) Fe3 Br3
E) Fe3 Br
19) Element M reacts with fluorine to form an ionic
compound with the formula MF3 .
The M-ion has 18 electrons. Element M is __________.
A) P
B) Sc
C) Ar
D) Ca
E) Cr
20) Magnesium and sulfur form an ionic compound with the
formula __________.
A) MgS
B) Mg 2S
23) The correct name for Mg(ClO3 )2 is __________.
A) magnesium chlorate
B) manganese chlorate
C) magnesium chloroxide
D) magnesium perchlorate
E) manganese perchlorate
24) What is the correct formula for ammonium sulfide?
A) NH4SO3
B) (NH4 )2SO4
C) (NH 4 )2S
D) NH3S
E) N 2S3
25) When calcium reacts with sulfur the compound formed is
__________.
A) Ca 2S2
B) Ca 3S2
C) CaS
D) CaS2
E) Ca 2S3
26) Chromium and chlorine form an ionic compound whose
formula is CrCl3 .
The name of this compound is __________.
A) chromium chlorine
B) chromium(III) chloride
C) monochromium trichloride
D) chromium(III) trichloride
E) chromic trichloride
27) The formula for aluminum hydroxide is __________.
A) AlOH
B) Al3OH
C) Al2 (OH)3
D) Al(OH)3
C) MgS2
E) Al2 O3
D) Mg 2S2
28) The name of the ionic compound V2 O3 is __________.
A) vanadium(III) oxide
B) vanadium oxide
C) vanadium(II) oxide
D) vanadium(III) trioxide
E) divanadium trioxide
29) The name of the ionic compound (NH4 )3PO4 is
__________.
A) ammonium phosphate
B) nitrogen hydrogen phosphate
C) tetrammonium phosphate
D) ammonia phosphide
E) triammonium phosphate
30) Which atom has the smallest number of neutrons?
A) carbon-14
B) nitrogen-14
C) oxygen-16
D) fluorine-19
E) neon-20
31) Which atom has the largest number of neutrons?
A) phosphorous-30
B) chlorine-37
E) Mg 2S3
21) The formula of ammonium carbonate is __________.
A) (NH4 )2 CO3
B) NH 4 CO2
C) (NH3 )2CO4
D) (NH3 )2 CO3
E) N2 (CO3 )3
22) The formula of the carbonate ion is __________.
A) CO22B) CO32C) CO33D) CO2E) CO -
C) potassium-39
D) argon-40
E) calcium-40
32) Which combination of protons, neutrons, and electrons is
63
correct for the isotope of copper,
Cu?
29
A) 29 p , 34 n°, 29 e
B) 29 p , 29 n°, 63 e
C) 63 p , 29 n°, 63 e
D) 34 p , 29 n°, 34 e
E) 34 p , 34 n°, 29 e
33) Which isotope has 45 neutrons?
80
A)
Kr
36
80
B)
Br
35
78
C)
Se
34
34
D)
Cl
17
103
E)
Rh
45
34) Which isotope has 36 electrons in an atom?
80
A)
Kr
36
80
B)
Br
35
78
C)
Se
34
34
D)
Cl
17
36
E)
Hg
80
35) Isotopes are atoms that have the same number of
__________ but differing number of _
_________.
A) protons, electrons
B) neutrons, protons
C) protons, neutrons
D) electrons, protons
E) neutrons, electrons
36) In the symbol below, X = __________.
13
X
6
A) N
B) C
C) Al
D) K
E) not enough information to determine
37) Which one of the following is a nonmetal?
A) W
B) Sr
C) Os
D) Ir
E) Br
38) Which one of the following is most likely to lose
electrons when forming an ion?
A) F
B) P
C) Rh
D) S
E) N
39) The species __________ contains 16 neutrons.
A) 31P
B) 34 S2C) 36 Cl
D) 80 Br E) 16 O
40) Which of the following compounds would you expect to
be ionic?
A) SF6
B) H 2 O
C) H 2 O2
D) NH3
E) CaO
41) Which formula/name pair is incorrect?
A) Mn(NO2 )2
manganese(II) nitrite
B) Mg(NO3 )2
magnesium nitrate
C) Mn(NO3 )2
manganese(II) nitrate
D) Mg3 N2
magnesium nitrite
E) Mg(MnO4 )2
magnesium permanganate
42) Which species below is the nitride ion?
A) Na +
B) NO3C) NO2D) NH4+
E) N3-